Question

Distinguish between emmerson's effect and richmond lang effect

Answer 1

Richmond- Lang effect-This effect is discovered by Richmond & Lang in 1967. Acc. to this effect the delay of senescene of leaves and other parts takes place by the help of plant growth regulator cytokinin. Leaf senescence is a developmental process actively initiated as part of an age-dependent genetic program or in response to environmental stress which leads to apoptosis.